Exploratory research is typically conducted __________ in the learning process

Drews et al. (2008) manipulated driving conditions (i.e., driving while talking to a friend on the cell phone and driving while talking to a friend in the car) to see if this influenced the number of driving errors committed

Participants completed the task on a driving simulator. The simulator was used to increase which of the following? a. ecological validity b. convergent validity c. divergent validity d. construct validity

What does the following mean in words: H0 ?1 = ?2?

a. The mean of population 1 is equal to the mean of population 2 b. The mean of population 1 is not equal to the mean of population 2 c. The mean of sample 1 is not equal to the mean of sample 2 d. The mean of sample 1 is equal to the mean of sample 2